VictoriaMetrics/vendor/github.com/dmitryk-dk/pb/v3/io.go
Dmytro Kozlov c8af625bcc
vmctl: fix build for solaris os (#2555)
* vmctl: fix build for solaris os

* vmctl: updated dependency (using Syscall instead of Syscall6)

* vmctl: updated dependency

* vmctl: updated dependency
2022-05-09 21:36:18 +02:00

49 lines
1 KiB
Go

package pb
import (
"io"
)
// Reader it's a wrapper for given reader, but with progress handle
type Reader struct {
io.Reader
bar *ProgressBar
}
// Read reads bytes from wrapped reader and add amount of bytes to progress bar
func (r *Reader) Read(p []byte) (n int, err error) {
n, err = r.Reader.Read(p)
r.bar.Add(n)
return
}
// Close the wrapped reader when it implements io.Closer
func (r *Reader) Close() (err error) {
r.bar.Finish()
if closer, ok := r.Reader.(io.Closer); ok {
return closer.Close()
}
return
}
// Writer it's a wrapper for given writer, but with progress handle
type Writer struct {
io.Writer
bar *ProgressBar
}
// Write writes bytes to wrapped writer and add amount of bytes to progress bar
func (r *Writer) Write(p []byte) (n int, err error) {
n, err = r.Writer.Write(p)
r.bar.Add(n)
return
}
// Close the wrapped reader when it implements io.Closer
func (r *Writer) Close() (err error) {
r.bar.Finish()
if closer, ok := r.Writer.(io.Closer); ok {
return closer.Close()
}
return
}